Community Greenhouse Gas Inventory


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​​​​​​​​​Since 2000, community emissions have decreased 31%. 

Our goal is to achieve carbon neutrality and reduce emissions 100% by 2030. 

Learn about the 2021 Community-Wide Greenhouse Gas Inventory


Community Greenhouse Gas Inventory

What are greenhouse gases?

Greenhouse gases are gases that trap heat in the atmosphere, causing global warming and climate change. The community greenhouse gas inventory tracks the carbon dioxide, methane, and nitrous oxide emissions that occur when fossil fuels are combusted, organic material anaerobically decomposes, and other processes.

Why measure?

Tracking our community's greenhouse gas emissions lets us know our current impact on the climate, and our progress on reducing emissions to date. It also informs the design of the A2Zero Climate Action Plan. 

We measure emissions at the city level because cities create over 70% of global greenhouse gas emissions. But cities also represent an opportunity to reduce emissions through more efficient infrastructure and planning, providing residents with a better quality of life and lower carbon footprint than areas outside of cities. 

​Learn more about the 2019 community-wide greenhouse gas inventory:​


Read more about the 2019 community greenhouse gas inventory in our Annual Greenhouse Gas Inventory Report:

GHG Inventory Calendar Year 2019 Report

GHG Inventory Calendar Year 2020 Report

Open Data​

Read more about the methodology, assumptions, and data sources used to calculate the community-wide greenhouse gas inventory in our Greenhouse Gas Inventory Guide and spreadsheet.

GHG Inventory Guide

GHG Inventory Spreadsheet 2019

GHG Inventory Spreadsheet 2020